"I'm looking at the bullet hole and I'm thinking that it could have been me or whoever was sitting behind me," Susie Ciulla-Hall said. "My little one is traumatized."

Ciulla-Hall had just arrived home from school in the family SUV around 3 p.m. and walked into their home when shots rang out.

"We heard three gunshots," she said. "We saw someone running, and heard a car take off."

Brockton police are still investigating the incident, but they said it appeared as though a man had posted a fake ad online to sell a dirt bike and when another man answered the ad and showed up on Washburn Street with money to buy the bike the seller pulled out a BB gun and tried to rob him.

The buyer pulled out a real gun, though, and opened fire, hitting the would-be robber.